Bicycle frame



FIG. 1 is a perspective view of the bicycle frame;

FIG. 2 is a left side elevation view thereof, showing the bicycle framein use;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is top plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear plan view thereof.

The broken lines in the drawing are for the purpose of showingenvironment and form no part of the claimed design.

The ornamental design for a bicycle frame, as shown and described.